- document
-
van Manen, T. (author), Janbaz, S. (author), Zadpoor, A.A. (author)Shape-shifting of flat materials into the desired 3D configuration is an alternative design route for fabrication of complex 3D shapes, which provides many benefits such as access to the flat material surface and the ability to produce well-described motions. The advanced production techniques that primarily work in 2D could then be used to...review 2018
- document
-
Rahnamay Moshtagh, P. (author), Korthagen, Nicoline M. (author), Plomp, Saskia G. (author), Pouran, B. (author), Castelein, Rene M. (author), Zadpoor, A.A. (author), Weinans, Harrie (author)This study aims to investigate the earliest alterations of bone and cartilage tissues as a result of different exercise protocols in the knee joint of Wistar rats. We hypothesize that pretraining to a continuous intense running protocol would protect the animals from cartilage degeneration. Three groups of animals were used: (i) an adaptive ...journal article 2018
- document
-
Kolken, H.M.A. (author), Janbaz, S. (author), Leeflang, M.A. (author), Lietaert, K. (author), Weinans, Harrie (author), Zadpoor, A.A. (author)Rationally designed meta-biomaterials present unprecedented combinations of mechanical, mass transport, and biological properties favorable for tissue regeneration. Here we introduce hybrid meta-biomaterials with rationally-distributed values of negative (auxetic) and positive Poisson’s ratios, and use them to design meta-implants that unlike...journal article 2018
- document
-
Mirzaali, Mohammad J. (author), Janbaz, S. (author), Strano, M. (author), Vergani, L. (author), Zadpoor, A.A. (author)Architectured materials with rationally designed geometries could be used to create mechanical metamaterials with unprecedented or rare properties and functionalities. Here, we introduce "shape-matching" metamaterials where the geometry of cellular structures comprising auxetic and conventional unit cells is designed so as to achieve a pre...journal article 2018
- document
-
Cuellar Lopez, J.S. (author), Smit, G. (author), Plettenburg, D.H. (author), Zadpoor, A.A. (author)Fabrication of complex and multi-articulated mechanisms is often seen as a time consuming and demanding process. The development of functional multi-articulated mechanisms that could be fabricated in a single step without the need for post-manufacturing assembly is therefore very attractive. Additive manufacturing (AM) has been pointed out as...review 2018
- document
-
Li, Y. (author), Jahr, H. (author), Lietaert, K. (author), Pavanram, P. (author), Yilmaz, A. (author), Fockaert, L.I. (author), Leeflang, M.A. (author), Pouran, B. (author), Gonzalez Garcia, Y. (author), Weinans, Harrie (author), Mol, J.M.C. (author), Zhou, J. (author), Zadpoor, A.A. (author)Additively manufactured (AM) topologically ordered porous metallic biomaterials with the proper biodegradation profile offer a unique combination of properties ideal for bone regeneration. These include a fully interconnected porous structure, bone-mimicking mechanical properties, and the possibility of fully regenerating bony defects. Most...journal article 2018
- document
-
Mirzaali, Mohammad J. (author), Edens, M. E. (author), de la Nava, A. Herranz (author), Janbaz, S. (author), Vena, P. (author), Doubrovski, E.L. (author), Zadpoor, A.A. (author)Biomimetic composites are usually made by combining hard and soft phases using, for example, multi-material additive manufacturing (AM). Like other fabrication methods, AM techniques are limited by the resolution of the device, hence, setting a minimum length scale. The effects of this length scale on the performance of hard-soft composites...journal article 2018
- document
-
Cuellar Lopez, J.S. (author), Smit, G. (author), Zadpoor, A.A. (author), Breedveld, P. (author)In developing countries, prosthetic workshops are limited, difficult to reach, or even non-existent. Especially, fabrication of active, multi-articulated, and personalized hand prosthetic devices is often seen as a time-consuming and demanding process. An active prosthetic hand made through the fused deposition modelling technology and fully...journal article 2018
- document
-
Zadpoor, A.A. (author)Additive manufacturing (AM) (=3D printing) has emerged during the last few years as a powerful technological platform for fabrication of functional parts with unique complex geometries and superior functionalities that are next to impossible to achieve using conventional manufacturing techniques. Due to their importance in industrial...contribution to periodical 2018
- document
-
Mirzaali, Mohammad J. (author), Caracciolo, A. (author), Pahlavani, H. (author), Janbaz, S. (author), Vergani, L. (author), Zadpoor, A.A. (author)Up until recently, the rational design of mechanical metamaterials has usually involved devising geometrical arrangements of micro-architectures that deliver unusual properties on the macro-scale. A less explored route to rational design is spatially distributing materials with different properties within lattice structures to achieve the...journal article 2018
- document
-
Ahmadi, S.M. (author), Ashok Kumar Jain, R. K. (author), Zadpoor, A.A. (author), Ayas, C. (author), Popovich, V. (author)Titanium and its alloys such as Ti6Al4V play a major role in the medical industry as bone implants. Nowadays, by the aid of additive manufacturing (AM), it is possible to manufacture porous complex structures which mimic human bone. However, AM parts are near net shape and post processing may be needed to improve their mechanical properties....journal article 2018
- document
-
van Manen, T. (author), Janbaz, S. (author), Zadpoor, A.A. (author)Materials and devices with advanced functionalities often need to combine complex 3D shapes with functionality-inducing surface features. Precisely controlled bio-nanopatterns, printed electronic components, and sensors/actuators are all examples of such surface features. However, the vast majority of the refined technologies that are currently...journal article 2017
- document
-
van Hengel, I.A.J. (author), Riool, Martijn (author), Fratila-Apachitei, E.L. (author), Witte-Bouma, Janneke (author), Farrell, Eric (author), Zadpoor, A.A. (author), Zaat, Sebastian A.J. (author), Apachitei, I. (author)Additively manufactured Ti-6Al-4V implants were biofunctionalized using plasma electrolytic oxidation. At various time points during this process scanning electron microscopy imaging was performed to analyze the surface morphology (van Hengel et al., 2017) [1]. This data shows the changes in surface morphology during plasma electrolytic...journal article 2017
- document
-
Bakhshandeh, S. (author), Gorgin Karaji, Z. (author), Lietaert, K. (author), Fluit, A.C. (author), Boel, C.H.E. (author), Vogely, H.C. (author), Vermonden, T. (author), Hennink, W. E. (author), Weinans, Harrie (author), Zadpoor, A.A. (author), Amin Yavari, S. (author)Implant-associated infections are notoriously difficult to treat and may even result in amputation and death. The first few days after surgery are the most critical time to prevent those infections, preferably through full eradication of the micro-organisms entering the body perioperatively. That is particularly important for patients with a...journal article 2017
- document
-
Zadpoor, A.A. (author)Biomaterials and tissue biomechanics have been traditionally separate areas of research with relatively little overlap in terms of methodological approaches. Recent advances in both fields on the one hand and developments in fabrication techniques and design approaches on the other have prepared the ground for joint research efforts by both...contribution to periodical 2017
- document
-
Zadpoor, A.A. (author)Recent advances in additive manufacturing (AM) techniques in terms of accuracy, reliability, the range of processable materials, and commercial availability have made them promising candidates for production of functional parts including those used in the biomedical industry. The complexity-for-free feature offered by AM means that very...journal article 2017
- document
-
Mirzaali, Mohammad J. (author), Hedayati, R. (author), Vena, P. (author), Vergani, L. (author), Strano, M. (author), Zadpoor, A.A. (author)The elastic properties of mechanical metamaterials are direct functions of their topological designs. Rational design approaches based on computational models could, therefore, be used to devise topological designs that result in the desired properties. It is of particular importance to independently tailor the elastic modulus and Poisson's...journal article 2017
- document
-
Mirzaali, Mohammad J. (author), Habibi, M. (author), Janbaz, S. (author), Vergani, L. (author), Zadpoor, A.A. (author)Crumpled-based materials are relatively easy to fabricate and show robust mechanical properties for practical applications, including meta-biomaterials design aimed for improved tissue regeneration. For such requests, however, the structure needs to be porous. We introduce a crumpled holey thin sheet as a robust bio-metamaterial and measure...journal article 2017
- document
-
Callens, S.J.P. (author), Zadpoor, A.A. (author)Transforming flat sheets into three-dimensional structures has emerged as an exciting manufacturing paradigm on a broad range of length scales. Among other advantages, this technique permits the use of functionality-inducing planar processes on flat starting materials, which after shape-shifting, result in a unique combination of macro-scale...journal article 2017
- document
-
Hedayati, R. (author), Sadighi, M (author), Mohammadi-Aghdam, M (author), Zadpoor, A.A. (author)Additively manufacturing (AM) techniques make it possible to fabricate open-cell interconnected structures with precisely controllable micro-architectures. It has been shown that the morphology, pore size, and relative density of a porous structure determine its macro-scale homogenized mechanical properties and, thus, its biological performance...journal article 2017